Twyer structure for gas-producers.



LLISTEELMANL U U TWYER STRUCTURE FOR PRODUCERS.

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LEWIs sTEELi/.uirr` E MILLVILLE, NEW JERSEY.

Y TWYEEsTRUo'rUEE Eon GAs'EopUoERs;

To all 'whom it' may concern.'

VBe it known that I, LEwIs STEELMAN, a citizen of the United States, residing at Millville, in the county `of Cumberland, State of New Jersey,have invented certain new and useful Improvements in V'Iwyer Structures for Gas-Producers, of which the following is a specification.

, HMy invention has relation totwyer struc-l, tures for gas producers, and 1s designed to y.

provide a twyer turret of novel and eiiicient character by which aV good distrlbutlon of the air is effected and which` isalso provided with a novel arrangement of scrapingdevices. .l

In the accompanying drawing,fin which I have shown the .preferred embodiment of my invention: Figure 1is a central'vertical sectional elevation through the lower or base portion of the combustion chamber ofthe gas producer and showing a turret embody-v ing my invention; and Fig. 2 is a sectional plan view of the twyer turret.

Referring to the drawings: 1 designates the combustion chamber of a typical gas producer or generator. This chamber' 1s formed in any preferred manner with walls 2 of brick incased in sheet iron, and at its lower portion is constructed to form an internally flaring discharging face 3, which Vterminates in an ash discharging throat 7 opening into a basal ash table chamber 35. The producer as an entirety is conveniently rested upon pedestals 4 springing from any appropriate foundation.

5 is a circular basin through which the pedestals pass andinto the upper portion of which the lower part of the furnace walls extend. This basin is filled with water to form the water seal of the producer and receive the ash. Centrally within the basin and being conveniently a part of it, is a foundation 8 upon which is superimposed the lower member 9 of a ball race, the upper member of which is designated'l, and between which members are disposed the balls 16. .The upper member 15 of the ball race is connected with the under surface of an ash table 10 upon which is superimposed Specification of Letters Patent.

interior of the turret, and disposed in three s Y Patented Feb.'1.7.5,'1916.` Application lfiled September 26, 1914. Serial No. 863,610. f

comparatively equidistant horizontal planes,

which mayv be considered as the steps-'11"' ofthe turret. VThe exterior or crown sur? faces ofjthese steps are formed with or overlapped by curved Scrapers 13, which, as

will be understood,.series by series Aradiate outward in corresponding curves. vWith the exception of the Scrapers upon the cap l2x of the turret, each series of Scrapers vis cor@ respondent in number to the twyers which discharge over the step upon which said series is located, so'that, as the steps of the turretgo down, so to speak, thereare increasingnumbersof series both'oftwyers and twyer Scrapers upon the respective steps.v

It is, in this connection, to be understood Y' that I do not limit-myself to the 'number of steps, or to the number of twyers, or to the precise orirelative 'correspondence be-V tween them, although in practice I iind it convenient to employ a three-step turret embodying the twyers shown. Ido not, moreover, limit myself to the number or special construction of twyer Scrapers employed, nor to the degree or general trend oftheir curvature when curved, but prefer. that they should numerically correspond with the twyers of the steps upon which they are placed and be curved in the direction of the curvature of the twyers, substantially as repre` sented in Fig. 2. Obviously, however, the

twyers themselves need not be curved, but 1 when curved as is preferable, their curvature should be backward so that in the rotation of the turret in the direction of the I arrow upon Fig. 2 the blasts through them l should be backward. 1 Y

The twyer turret as explained, is connected with-the ash table so as to rotate with it, and the diameter of its lowest step or basal portion is less than the diameter of the ash table, so that the ash which vgravitates through the discharging throat 7 of the combustion chamber may drop upon the peripheral outer face of the table and be thereon encountered by and subjected to the actionjof a` series of inwardly radiating scraping rods 27, .which are introduced through tubular boxings'28, in the lowerr walls of the furnace.

The rotary movement of the turret and ash table may be accomplished by any preferred means. I find it convenient, however. to form the underface of the table as a beveled toothed face 14, with whichV is venfI Q gaged a pinion 17 on the inner end `oi a pinion shaft 18 rotatable in suitable bearings 19 by a driven spur wheel 20 connected through an idler wheel 21 with the driving spur wheel 22 upon a shaft 23 housed in bearings 24 and conveniently provided. with drivingpulleys 25 and also with a crank handle 26. Obviously through this gearing a continuous rotary movement may be im parted to the ash table and the twyer turret.

29 is a conduit extending horizontally beneath the basin and turning vertically upward so as to open and discharge into the hollow interior of the twyer turret. Into the outer extremity of this conduit extend a steam injector 30 and an air injector 31, the conduit itself opening to the atmosphere.

32 is a damper fitting over the injectors and adapted to be vertically lifted and dropped within a bearing 33, upon the eX- terior 'of the basin, to control the admission of the outside air to the conduit. rIhe action of the injectors in conjunction with the admission of air to the conduit, occasions a forced draft to the twyer turret controllable by the damper.

.,341 are openings inthe ash table chamber Copies of this patent may be obtained for ve cents each. by addressing Ithe Commissioner of Patentsgf Y Y chamber hollow stepped pyramidal structure, each? step consisting of a circular horizontal series of radiating twyers, whose exterior or crown surfaces are formed with curvedoutwardly` radiating Scrapers; substantially .as described.

2. A.- rotary twyer-turret, comprising, a

hollow stepped pyramidal structure, each; step consisting or' a circular horizontal se.`

riesof radiating twyers, whose exterior or crown surfaces are Aformed with curved outwardly radiating Scrapers, both .the twyers and the Scrapers having a backward curvature with' respectto the direction of rotation of the structure; substantially as described.

-Inlwitness whereofI have hereunto signed my name this 16th day lotSeptember, 1914.

LEWIS STEELMAIT.` In the presence of- J, BoNsALL TAYLOR,

C. D. MCVAY.

Washington, D C. 

